On Thursday and Friday, the NYPD Harbor Unit and scuba divers scoured the waters around the Pleasant Plains pier off Hylan Boulevard and Sharrott Avenue, looking for Rosemarie Garigliano, 46, of Annadale.

On Monday afternoon, though, the pier had returned to its quiet normal aspect -- at one point, a family parked in the lot near the waterfront to enjoy the view as they ate lunch, just a few cars down from a parked ambulance.

An NYPD spokesman said an NYPD helicopter performed a fly-over on Saturday, and police on Monday night were still listing Ms. Garigliano as a missing person.

According to a law enforcement source, Mrs. Garigliano told her husband at 5 a.m. Thursday she was going to a hospital.

Her husband tracked her down using an iPhone app, but only found her abandoned car idling at the Lemon Creek Fishing Pier, the source said.

An NYPD source said the woman's coat was found by the pier, and what appeared to be a suicide note was left, not sent to anyone, in a "notepad" application on her phone.

The NYPD source said that Ms. Garigliano had attempted suicide in Pennsylvania sometime last September.

If she did, indeed, jump from the pier, her body may have been carried away by currents, and there's a chance she may not be found for several months, the NYPD source said.